From 1954b98652fd519fe0afc1e37830869e8113f260 Mon Sep 17 00:00:00 2001
From: AnnMarueW <amward@fastmail.com>
Date: Sat, 26 Sep 2026 08:08:35 -0700
Subject: [PATCH 1/2] Set autoComplete="off" in date pickers

---
 .../dash-core-components/src/fragments/DatePickerRange.tsx      | 2 ++
 .../dash-core-components/src/fragments/DatePickerSingle.tsx     | 1 +
 2 files changed, 3 insertions(+)

diff --git a/components/dash-core-components/src/fragments/DatePickerRange.tsx b/components/dash-core-components/src/fragments/DatePickerRange.tsx
index 2b118014e9..0989e662b7 100644
--- a/components/dash-core-components/src/fragments/DatePickerRange.tsx
+++ b/components/dash-core-components/src/fragments/DatePickerRange.tsx
@@ -405,6 +405,7 @@ const DatePickerRange = ({
                             disabled={disabled}
                             dir={direction}
                             aria-label={start_date_placeholder_text}
+                            autoComplete="off"
                         />
                         <ArrowIcon className="dash-datepicker-range-arrow" />
                         <AutosizeInput
@@ -427,6 +428,7 @@ const DatePickerRange = ({
                             disabled={disabled}
                             dir={direction}
                             aria-label={end_date_placeholder_text}
+                            autoComplete="off"
                         />
                         {clearable && !disabled && (
                             <a
diff --git a/components/dash-core-components/src/fragments/DatePickerSingle.tsx b/components/dash-core-components/src/fragments/DatePickerSingle.tsx
index f572ed629d..e91e964d65 100644
--- a/components/dash-core-components/src/fragments/DatePickerSingle.tsx
+++ b/components/dash-core-components/src/fragments/DatePickerSingle.tsx
@@ -204,6 +204,7 @@ const DatePickerSingle = ({
                             disabled={disabled}
                             dir={direction}
                             aria-label={placeholder}
+                            autoComplete="off"
                         />
                         {clearable && !disabled && !!date && (
                             <a

From 9f612562893e6a67c6cb326d1e22724ba5231262 Mon Sep 17 00:00:00 2001
From: AnnMarueW <amward@fastmail.com>
Date: Sat, 26 Sep 2026 08:20:59 -0700
Subject: [PATCH 2/2] added changelog

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f31991146e..a6e5004750 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,6 +38,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 - [#3881](https://github.com/plotly/dash/pull/3881) Fix components rendered as props (eg. `dcc.Dropdown` option labels, `dcc.Tab` labels) crashing or failing to update when the host subtree was replaced by a callback; out-of-tree `ExternalWrapper` components now re-insert themselves and update in place.
 - [#3929](https://github.com/plotly/dash/issues/3929) Fix components that set their own initial state on mount (eg. `dash-bootstrap-components` `Tabs`) not applying it on first render, because descendant layout hashes were reset on the first fresh render (regression introduced in 4.2.0 by [#3570](https://github.com/plotly/dash/pull/3570)).
 - [#3948](https://github.com/plotly/dash/issues/3948) Fix page getting progressively slower as callbacks append children
+- [#4009](https://github.com/plotly/dash/issues/4009) Disable autocomplete in DatePickerSingle and DatePickerRange inputs.
 
 ## [4.4.1] - 2026-07-21